The genetic units of interest in DNA sequencing,DNA probes and other research,related to proteins and traits of organisms,are the
A) wide number of similar genes among other organisms. B) nucleotide (nitrogen base) sequences. C) None of these answer options are correct. D) one or more gene locations, for genetic traits. E) number of chromosomes in the organism.
An ill or injured patient may have suffered from damaged tissues that the cell cycle,including mitosis,won't naturally repair or replace.This may include damaged nerves,or skin,or muscle.A form of biotechnology that attempts to stimulate new cell divisions with application of cells that are genetically unspecialized,is
A) stem cell research. B) genetic engineering. C) pre-implantation genetic diagnosis. D) cloning. E) DNA profiling.
Decorative flowers have been modified,from their wild type,to modern showy versions.Agricultural crops and livestock are selectively produced to have desirable nutrition and yield.Favorite dog and cat breeds exhibit desired traits of appearance and behavior.All of these are examples of
A) how strongly the traits and breeds of transgenic organisms have changed species already. B) All of these answer options are correct. C) many generations of traditional breeding techniques. D) changes leading to new breeds, or entire new species can only be produced with transgenic organisms. E) production of transgenic organisms by traditional breeding methods.